{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "A series of novel benzoxepins 6 was designed and prepared as rigid - isoCA - 4 analogs according to a convergent strategy using the coupling of N - tosylhydrazones with aryl iodides under palladium catalysis ."}
{"Chemical": ["benzoxepins", "isoCA - 4", "N - tosylhydrazones", "aryl iodides", "palladium"]}